The Titanium Field GuidePicks of the month

Hublot Spirit of Big Bang Tourbillon 5-Day Power Reserve Sky Blue Ceramic 42mm

645.EX.5123.NR

The Hublot Spirit of Big Bang Tourbillon 5-Day Power Reserve Sky Blue Ceramic 42mm is a 42 mm ceramic watch with an HUB6020 hand-wound movement. At a list price of $109,000, it costs more than 96% of the 197 ceramic watches in production. With a 115-hour power reserve, it runs longer than 93% of the 235 mechanical ceramic watches with a stated reserve.

All Hublot watchesOther watchesTourbillonPower reserve
Price
$109,000
Material
Ceramic
Grade / type
Polished Sky Blue Ceramic
Water resistance
30 m
Reference
645.EX.5123.NR
Type
Other
Case diameter
42.0 mm
Origin
Switzerland
Movement
HUB6020 Manufacture Manual-winding Power Reserve Skeleton Tourbillon Movement
Caliber
HUB6020
Power reserve
Min. 115 Hours
Complications
Tourbillon, Power reserve
Colour
Blue
Construction
Assembled
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Black Fabric with Velcro and Microblasted Ceramic Buckle. Additional Strap: Black and Light Blue Lined Rubber; Black ceramic and Black titanium Deployant Buckle Clasp
Crystal
Sapphire
Dial
Sapphire Crystal Dial
Availability
Offered
Status
Current
Not published
Thickness, Lug-to-lug, Weight, Hardness, Surface treatment, Caseback, Matching bracelet, Display back, Lume
High confidence Verified Oct 2026 Source: Hublot (maker) product page
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Frequently asked questions

What is the case of the Hublot Spirit of Big Bang Tourbillon 5-Day Power Reserve Sky Blue Ceramic 42mm made of?

The case is polished sky blue ceramic. That is confirmed against the maker's specification.

What size is the Hublot Spirit of Big Bang Tourbillon 5-Day Power Reserve Sky Blue Ceramic 42mm?

The case is 42 mm across. It is water resistant to 30 m.

How much does the Hublot Spirit of Big Bang Tourbillon 5-Day Power Reserve Sky Blue Ceramic 42mm cost, and is it available?

It is in production, at a list price of $109,000.

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